resolveMathClamp resolves a clamp transform, returning an error if the input is not a number. depending on the type of clamp, the result will be either the input or the clamp value, preserving their original types.
(t *v1beta1.MathTransform, input any)
| 139 | // is not a number. depending on the type of clamp, the result will be either |
| 140 | // the input or the clamp value, preserving their original types. |
| 141 | func resolveMathClamp(t *v1beta1.MathTransform, input any) (any, error) { |
| 142 | var in int64 |
| 143 | switch i := input.(type) { |
| 144 | case int: |
| 145 | in = int64(i) |
| 146 | case int64: |
| 147 | in = i |
| 148 | case float64: |
| 149 | in = int64(i) |
| 150 | default: |
| 151 | // should never happen as we validate the input type in ResolveMath |
| 152 | return nil, errors.Errorf(errFmtMathInputNonNumber, input) |
| 153 | } |
| 154 | switch t.Type { //nolint:exhaustive // We validate the type in ResolveMath |
| 155 | case v1beta1.MathTransformTypeClampMin: |
| 156 | if in < *t.ClampMin { |
| 157 | return *t.ClampMin, nil |
| 158 | } |
| 159 | case v1beta1.MathTransformTypeClampMax: |
| 160 | if in > *t.ClampMax { |
| 161 | return *t.ClampMax, nil |
| 162 | } |
| 163 | default: |
| 164 | return nil, errors.Errorf(errMathTransformTypeFailed, string(t.Type)) |
| 165 | } |
| 166 | return input, nil |
| 167 | } |
| 168 | |
| 169 | // ResolveMap resolves a Map transform. |
| 170 | func ResolveMap(t *v1beta1.MapTransform, input any) (any, error) { |